SOLUTION: Find the exact value of sin(u+v) given that sin u=-12/13 and cos v=-4/5. Both u and v are in quadrant III.

Question 942326: Find the exact value of sin(u+v) given that sin u=-12/13 and cos v=-4/5. Both u and v are in quadrant III.
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Find the exact value of sin(u+v) given that sin u=-12/13 and cos v=-4/5. Both u and v are in quadrant III.
***
sin u=-12/13
cos u=-5/13
..
cos v=-4/5
sin v=-3/5
..
sin(u+v)=sin u*cos v+cos u*sin v)
=-12/13*-4/5+-5/13*-3/5
=48/65+15/69=63/65
sin(u+v)=63/65
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